Tripper or deliverer for belt conveyers.



. PATBNTED JAN. 8, 1907. V B. MORTON; I

TRIPPER 0R DBLIVERER FOR, BELT GONVEYERS.

APPLICATION FILED MAY 5 1906.

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WITNESSES: v

IN VE N 70/? THE NORRIS PETERS co, WASH|NOTOI 4, n.

PATENT'ED JAN. 8, 1907,

r B. MORTON. TRIPPER 0R D'ELIVE'RER FOR BELT GONVEYERS.

APPLIOAT'ION FILED MAY 5, 1906.

' 2 SHEETS-SHEET 2.

[NVENTOH WITNESSES: i nn-47W WM ms NURRIS PETERS co., WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

BAXTER MORTON, OF NEW YORKQN. Y.

Specification of Letters Patent.

Patented. Jan. 8, 1907.

Application file May 5,1906. Serial No. 315,325.

To (LZZ whom it may concern: I

Be it known that I, BAXTER MORTON, a citizen of the United States,residin in the city, county, and State of New Yor have invented new anduseful Improvements in tion fromthe conveyer-belt to the tractiondevices ,of the tripper.

In the accompanying drawings I have illustrated one embodiment of theinvention which is hereinafter described in detail, and the scope of theinvention is clearly pointed out. in the claims. I I

In the drawings, Figure 1 is a view in side elevation of a tripperconstructed according to the present invention. Fig. 2 is a view in endelevation of the tripper shown in Fig. 1 with parts of the conveyervstructure indicated in section. Fig. 3 is-a diagram showing the movementof the bend-pulleys to adapt the tripper for o eration when thedirection of travel of the elt is reversed. Fig. 4 is a diagram showingthe ap lication of the invention to a tripper having t e up erbendpulley fixed and the lower bend-pu ley only susceptible of shifting.

Referring to the drawings by the reference characters, A designates therails of a track of ordinary construction, B the conveyerbelt, and (Jthe troughing-idlers for the belt. The traction-wheels 1 of the tripperrest upon the rails as usual and afford support for the frame 2, uponwhich the entire mechanism of the tripper is supported. The frame 2 isprovided intermediate of its ends with heavy supporting-arches 3, in thetops .of which are 'mounted short shafts 4, which carry bars 5,

' between the ends of which the upper bendpulley 6 and lower bend-pulley7 are arranged. The two bend-pulleys turn about shafts 8 and 9,respectively, which are rigidly connected with the bars 5, so as to forma strong rectangular frame, and at each side of the frame is mounted alarge worm-gear or circular worm-rack 10, which meshes with the worm 11on a shaft 12, turning in bearings upon the adjacent supporting-arch.The shaft 12 is adapted at the ends to receive a wrench 13. (Shown indotted lines in Fig. 1.), By means of the worm-gears 10, the worms 11,and the shafts 12. upon which the worms are mounted, the frame carryingthe two bend-pulleys can be turned about the pivot-shafts 4 to reversethe curve of the belt.

In the structure illustrated in Figs. 1 to 3, inclusive, but one lowerbend-pulley is provided, and power is always transmitted to thetraction-wheels from the lower bend-pulley. The power-transmittingmechanism comprises a bevel-pinion 14, rigidly connected with the lowerbend-pulley, a bevel-pinion 15, with which the pinion 14 meshes when thebend-pulley is in operative position, and mechanism for transmittingmotion from. the bevel-pinion 15 to the tractionwheels. The pinion 15 ismounted at the upper end of a short shaft turning in bearings providedin one of the supporting-arches 3. and provided at its lower end with abevelpinion 16, which is constantly in mesh with two loose bevel-pinions17 on the longitudinal shaft 18, from which motion is transmitted to theaxles of the traction-wheels. Clutches 19 are provided to establishoperative connection between the bevel-pinions 17 and the shaft 18, asrequired. In the structure diagrammatically illustrated in Fig. 4 anupper bend-pulley 20 turns round a fixed axis, and two lowerbend-pulleys 21 and 22 are mounted in opposite ends of a frame 23, whichturns round the axis of the fixed upper bend-pulley to bring one or theother of the lower. bend-pulleys into position. The lower bend-pulleys21 and 22 are both provided with bevel-pinions 24, and when either ofthe two lower bend-pulleys is in operative position below the fixedbendpulley 20 the bevel-pinion carried by the lower bend-pulley, whichis in position, will mesh with a fixed bevel pinion 25, which occupiesthe position, of thefixed bevel-pinion 15 in Fig. 1

From the foregoing description and the drawings it will be noted thatthe mechanism for transmitting motion from the belt, to the tractionmechanism is very simple and comact com risin ver few ears and reducingboth the cost and weight of said powertransmitting mechanism to aminimum. l

While I have shown and described a shaft extending longitudinally of thetripper- IIO - the present invention.

The operation of the tripper constructed according to the presentinvention will be readily understood. When the bend-pulleys are in theposition shown in Fig. 1 with the belt traveling from left to right, thebevel gear 14:, carried by the lower bend-pulley, is in mesh with thebevel-gear 15, mounted in the base of one of the supporting-arches 3,and motion is transmitted'from the bevel-gear 15 t'o-t'hetraction-wheels. When, however, the direction of travel of the belt isto be reversed, the upper and lower bend-pulleys are both turned througha complete circle-from right to left, as indicated in Fig. 3. Duringthis movement the bevel-pinion 14, carried by the lower bend-pulley,remains out of engagement with the pinion 15 from the beginning of themovement until it is substantially completed, coming into engagementwith the pinion 15 only just before the lower bend-pulley completes itstravel through the entire circle. In this way the effort required toeffect the shifting of the bend-pulleys preparatory to the reversal ofthe belt is reduced to a minimum, and the gears remain in mesh only whenthe bend-pulleys are in position for operation.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination in a tripper or deliverer for belt conveyers of ashiftable bendpulley, traction members, and power-transmitting mechanismwhereby movement is transmitted from said lower bend-pulley to saidtraction members, said power-transmitting mechanism comprising a pinionmovable with said shiftable bend-pulley and a pinion turning about afixed axis and adapted to 011- gage with the pinion movable with theshiftable bend-pulley when said shiftable bend.- pulley is in operativeposition.

2. The combination in a tripper or deliverer' for belt conveyers of ashiftable lower bend-pulley, traction members for saidtripper, and powertransmitting mechanism whereby movement is imparted from said shiftablelowerbend-pulley to said traction members, said power-transmittingmechanism comprising a pinion: rigidly connected with said shiftablelower bendpulley and a pinion turning about: a fixed axis and adaptedfor engagement with the pinion rigidly connected with the shiftablelower bendpulley when said lower bend-pulley is in operative position.

In testimony whereof I have signed. my name in the presence oftwowitnesses.

' BAXTER MQRTON. Witnesses:

H. RICHARD W'o'Bsn, K. E. O'BRIEN.

